Prethermalization with negative specific heat
Statistical Mechanics
2020-11-11 v1 Quantum Gases
Abstract
We study non-canonical relaxation in a composite cold atoms system, consisting of subsystems that possess negative microcanonical specific heat. The system exhibits pre-thermalization far away from integrability due to the appearance of a single adiabatic invariant. The Thirring instability drives the constituent subsystems towards the edges of their allowed energy spectrum, thus greatly enhancing the contrast between the prethermal state and the long time thermal outcome.
Cite
@article{arxiv.2009.01491,
title = {Prethermalization with negative specific heat},
author = {Sayak Ray and James R. Anglin and Amichay Vardi},
journal= {arXiv preprint arXiv:2009.01491},
year = {2020}
}